Sliding-door hanger



A. F. LARSON.

SLIDING DOOR HANGER.

APPLICATION FILED JULY 25. 1911.

Patented Apr. 26, 1921.

INVENTOH ATTORNEY,

UNITED fiTATEfi arena? re ns.

ANDREW F. LARSON, OF PORTLAND, OREGON, ASSIGNOR TO THE GRAVITY DOOR HANGER COMPANY, A OORPORATIQN OF OREGON.

SLIDING-DOOR HANGER.

Application filed July 25,

To aZZ whom it may concern Be it known that 1, ANDREW F. LARSON, a citizen of the United States of America, residing at Portland, in the county of Multnomah in the State of Oregon, have invented certain new and useful Improyements in Sliding-Door Hangers, of which the following is a specification, reference being had to the accompanying drawing.

y invention relates to door hangers of the same general description as those described in application for United States Letters Patent filed by me at the same time herewith.

My invention is in part a modification of the device described in the companion application that is available for use where economy of space is not so much a desideraturn, but it also includes door-supportingmechanism involving certain independently novel and useful features that are designed and adapted to facilitate the operation of a door to which they are applied.

What constitutes my invention will be hereinafter specified in detail and succinctly set forth in the appended claims.

In the accompanying drawing,

Figure I is a side elevation of a door and its supporting mechanism shown in two positions in full and dotted lines, respectively, together with illustration of so much of a door-frame as is necessary to show the relationship of the cooperating parts one to another.

Fig. II is an edge view from left to right of the subject matter of Fig. I.

Referring to the numerals on the draw ing, 1 indicates a supperting-frame-piece of a door-way the locations of whose sides are indicated by 2 and 3, respectively. The

member 1 is shown in the drawing as located above the doorway, but it should be understood that it is equally operative in connection with my mechanism whether placed above or below the door 4. The drawing consequently may be read either in the position in which it is placed upon the sheet, or in the reverse or upside-down position.

The door is supported by two supporting members or links 5 and 6 and two supporting members or bars 7 and 8, the link 5 being pivotally united to the bar 7 as indicated at 9, and the link 6 pivotally united to the bar 8 as indicated at 10.

Each link is pivoted to the door 4, one as Specification of Letters Patent.

Patented Apr. 2c, 1921. 1917. Serial No. 182,621.

indicated at 11 and the other as indicated at i 12. The two bars are pivoted to the member 1, one as indicated at 15 and the other as indicated at 16.

The pivotal points 11 and 12, and 15 and 16, respectively, are preferably independent and the distance between th points 11 and 12 is preferably unequal to that between the points 15 and 16.

The mechanical means for effecting pivotal connection between the parts employed at the several points 11-12-15 and 16 may be applied immediately to the door and to the member 1, respectively, but I prefer pivotally to secure the links 5 and 6 at the points 11 and 12, respectively, directly to a plate 17, and the bars 7 and 8, at the points 15 and 16, to a plate 18, the plate 17 being securable to the door as by means of screws or bolts 19, and the plate 18 securable thereto as by means of screws or bolts 20.

The mechanism above described may be and preferably is substantially the same as that described in my companion application above referred to and subject to like modifications. Differentiation between the subject matter of that application and that of the present one is found in the modification of the extensions 21 and 22 with which the bars 7 and 8 are respectively provided, in the particular, namely, that said extensions are provided, respectively, near their free ends, with longitudinally coaxial slots 23 and 24, each working upon headed pins 25 and 26, respectively, secured to the door.

Further differentiation is found in the.

provision of a connecting link 27 extending between the points 9 and 10, and pivotally connected to the links 5 and 6, respectively, at those points.

The employment of the slots 28 and 241 longitudinally disposed with respect to the bar extensions 21 and 22, respectively, is made available in the present case by employing bars 7 and 8 elongated by their respective extensions 21 and 22 of considerably greater length than those employed in my companion application. They are available for that reason, as has beenspecified, in sit uations in which great economy of space for installation and operation is not indispensable.

The use of the slots 23 and 24 as described, is moreover, made practicable without material increase of friction by the employment of the link 27. That link operates with the link 5 or G, as the case mav be, de termined by the position of the door in any point oi. its travel, and constitutes a t l lever so that a force applied to the do; move 1t transversely is communicated with toggle-lever effect through either one or". the bars 7 or 8 to the other with the eilect of lightening the load upon the first bar and relieving the friction upon the slot and boi t connection of the second bar. This point will perhaps be better understood upon reference to the illustration aiiorded in full lines in Fig. 1 of the drawing. in that portion of the illustration afforded in Fig. l. the links 5 and 27 joined as they are at the point 9 to each other and to the bar 7' constitute a toggle-lever. If 'n this position of those parts, the weight of the door being sustained mainly from the link 5 and bar 7, force be applied to drive the door from right to left, the toggle-lever eii'ect of the links 5. and 27 will be communicated through their connection with the bar 7 the point 9, the movement of the point 10 being regulated by the swing oi the link 6 and the bar 8.

The consequent effect will be to transier part of such weight of the door as is imposed upon the bar 7 to the bar 8 and to prevent binding between the sides of the slot 24 and its pin 26. By the travel oi the door back and forth the toggle-lever effect will be transferred at certain point or points from the link 5 to the link'h, and back again.

Further description of the operation of my device, than that afforded in the pre ceding specification and particularly' the last paragraph, appears to be unnecessary.

What I claim is:

1. The combination with a door and its supporting frame piece, of two pairs of refleXed door supporting members oi unequal lengths, the two members of: each pair being pivotally united at their points of lQ'fiGXlOfl, the free ends of the short members being pivotally connected to the door on opposite sides of the vertical center thereof, the corresponding ends or the long members i pivotally connected to the framing, guidh means for the opposite ends of the lo 7 members, and a transversely cz-ztending link pivotally connecting the pairs oti members at their respective points of rclleiiion.

2. The combination with adoor and its supporting frame piece, of two pairs of refiexed door supporting members of unequal. lengths, the two members of each pair being pivotally united at their points of refleirion, the free ends of the short members being pivotally connected to the door on opposite sides or the vertical center thereof, the corresponding ends of the long members being pivotally connected to the framing bevond the points of connection of the short members with the door, guiding means :tor the opposite ends of the long inembers, and a transversely entending link pivotally con,- necting the pairs of members at their respective points of reflexion.

3. The combination with a door and its supporting frame piece, of two pairs of reiiexed door supporting members of unequal length adapted to automatically shift preponderai'it weight of the door from one pair to the other upon movement of: the door in opposite directions, the we members of each pair being prwotall united at their points of refleirion, the free ends of the short members being pivotally connected to the door on opposite sides oi the vertical center thereof, the corresponding ends of the long members being pivotally connected to the framing, guiding means for the opposite ends oi the long members, and a transversely extending link pivotally connecting the pairs of members at the respective points of re flexion.

l. A sliding door supporting device, comprising two long levers adapted to be pivotally connected at one end to a door traming, two short levers adapted to be pivotally connected at one end to the opposite sides of the vertical center of a door, and pivotally connected at their opposite ends to inter mediate portions of the firstmentioned le-' vers, a transversely extending link pivotally connecting the long levers at their points of connection with the short levers, and guiding means for the free ends of each of said long levers.

5. A sliding door stuaportingdevice, comprising two long levers pivotally connected at one end to a framing, two short levers pivotally connected at one end to the opposite side of the vertical center of the door and at their opposite ends to intermediate portions oi the first-mentioned levers, a transversely extending link pivotall v con.- necting said long levers at their points of: connection with the short levers, and guid: ing means for the tree ends each oi said long levers.

In testimony whereof, I have hereunto set my hand in the presence of two sulilscribing witnesses.

ANDRElV F. LA, 

